Best to show the whole plant in a pic also to better determine....but.....looks like it's just coming into the harvest window....however it will probably shoot new pistils and bulk up in the next week or 2. If you harvest now you won't get much yield...it's mostly sugar leaves still. I personally would wait for it to fatten up and give it a couple more weeks.
So...could you?...yes.....should you? ...no.